Exist No Objective Truths?

For more info, checked out God’s Crime Scene: A Cold-Case Detective Examines the Evidence for a Divinely Created Universe (http://amzn.to/2kAroVD).

Read: Quick Shot – “There are no unbiased truths”.
https://coldcasechristianity.com/writings/quick-shot-there-are-no-objective-truths/.

Are all truths just a matter of viewpoint, culture or “lived experience”? If transcendent realities exist, how can we “ground” them?